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authorLiam Girdwood <liam.r.girdwood@linux.intel.com>2014-10-29 15:40:28 +0000
committerMark Brown <broonie@kernel.org>2014-10-29 16:56:55 +0000
commitd96c53a193dd65380452c8e9f6dcf15cf829c7dc (patch)
treedb63717971469d0639ac3f6b77086a0e1a6da1b9
parent137f6d541ae75b3769c4c67e61c25340789b3cbc (diff)
ASoC: Intel: Add generic support for DSP wake, sleep and stall
Add generic functions to support DSP sleep, wake and stall. Signed-off-by: Liam Girdwood <liam.r.girdwood@linux.intel.com> Signed-off-by: Mark Brown <broonie@kernel.org>
-rw-r--r--sound/soc/intel/sst-dsp-priv.h3
-rw-r--r--sound/soc/intel/sst-dsp.c23
-rw-r--r--sound/soc/intel/sst-dsp.h4
3 files changed, 30 insertions, 0 deletions
diff --git a/sound/soc/intel/sst-dsp-priv.h b/sound/soc/intel/sst-dsp-priv.h
index be81b86b6462..b9da030e312d 100644
--- a/sound/soc/intel/sst-dsp-priv.h
+++ b/sound/soc/intel/sst-dsp-priv.h
@@ -36,6 +36,9 @@ struct sst_ops {
/* DSP core boot / reset */
void (*boot)(struct sst_dsp *);
void (*reset)(struct sst_dsp *);
+ int (*wake)(struct sst_dsp *);
+ void (*sleep)(struct sst_dsp *);
+ void (*stall)(struct sst_dsp *);
/* Shim IO */
void (*write)(void __iomem *addr, u32 offset, u32 value);
diff --git a/sound/soc/intel/sst-dsp.c b/sound/soc/intel/sst-dsp.c
index d0fc6853b2b7..86e410845670 100644
--- a/sound/soc/intel/sst-dsp.c
+++ b/sound/soc/intel/sst-dsp.c
@@ -245,6 +245,29 @@ int sst_dsp_boot(struct sst_dsp *sst)
}
EXPORT_SYMBOL_GPL(sst_dsp_boot);
+int sst_dsp_wake(struct sst_dsp *sst)
+{
+ if (sst->ops->wake)
+ return sst->ops->wake(sst);
+
+ return 0;
+}
+EXPORT_SYMBOL_GPL(sst_dsp_wake);
+
+void sst_dsp_sleep(struct sst_dsp *sst)
+{
+ if (sst->ops->sleep)
+ sst->ops->sleep(sst);
+}
+EXPORT_SYMBOL_GPL(sst_dsp_sleep);
+
+void sst_dsp_stall(struct sst_dsp *sst)
+{
+ if (sst->ops->stall)
+ sst->ops->stall(sst);
+}
+EXPORT_SYMBOL_GPL(sst_dsp_stall);
+
void sst_dsp_ipc_msg_tx(struct sst_dsp *dsp, u32 msg)
{
sst_dsp_shim_write_unlocked(dsp, SST_IPCX, msg | SST_IPCX_BUSY);
diff --git a/sound/soc/intel/sst-dsp.h b/sound/soc/intel/sst-dsp.h
index 17ee9239092a..7bb482053489 100644
--- a/sound/soc/intel/sst-dsp.h
+++ b/sound/soc/intel/sst-dsp.h
@@ -245,6 +245,10 @@ void sst_memcpy_fromio_32(struct sst_dsp *sst,
/* DSP reset & boot */
void sst_dsp_reset(struct sst_dsp *sst);
int sst_dsp_boot(struct sst_dsp *sst);
+int sst_dsp_wake(struct sst_dsp *sst);
+void sst_dsp_sleep(struct sst_dsp *sst);
+void sst_dsp_stall(struct sst_dsp *sst);
+
/* DMA */
int sst_dsp_dma_get_channel(struct sst_dsp *dsp, int chan_id);
void sst_dsp_dma_put_channel(struct sst_dsp *dsp);